Error code reference

Maytag Washer Error Code d13

Blocked coin 2 or coin drop control circuit failure (coin recognition and price display disabled while blockage persists; machine non-functional on original models).

SourceMaytag Neptune Commercial Washer - Full Service Manual (MAH14/20/21)p. 3-16, 4-19

Diagnostic procedure

The full d13 procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check for an object blocking the coin drop optical sensor; it takes 8 seconds for the control to recognize the blockage; if problem still exists, replace the second coin drop optical sensor.

SourceMaytag Neptune Commercial Washer - Full Service Manual (MAH14/20/21)p. 3-16, 4-19

More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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